This video, from the PBS “Origin of Everything” series, discusses the origins of gender in humans. The concept of gender is distinguished from biological sex, and the homology of sex organs is briefly discussed as it played a role in developing the concept of gender in some societies. Most of the video is spent how ideas of gender have developed through history in multiple cultures. We noted a valuable and rarely made distinction : the video discusses how the concept of “man” has often been closely associated with race and class, not just with gender.